Greater Cincinnati Water Works provides about 133 million gallons of water a day through 3,000 miles of water mains to most of Hamilton County and parts of Butler and Warren counties in Ohio, and to Boone County in Kentucky.

The City of North College hill has developed its own Storm Water Management Plan (SWMP) in order to comply with the requirements of the Clean Water Act (CWA) in accordance with the Ohio Environmental Protection Agency (OEPA) National Pollutant Discharge Elimination System (NPDES) Phase II program.